Deuteronomy 28:32-34

28:32 Your sons and daughters will be given to another people while you look on in vain all day, and you will be powerless to do anything about it. 28:33 As for the produce of your land and all your labor, a people you do not know will consume it, and you will be nothing but oppressed and crushed for the rest of your lives. 28:34 You will go insane from seeing all this.